Granted Patent
Utility
US 4,305,869 · App. 06/103,976
Terpolymers with improved heat distortion resistance
Inventors:
Yoon C. Lee, Quirino A. Trementozzi
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: Dec 17, 1979
Inventors
Yoon C. Lee
Quirino A. Trementozzi
Assignee (at issue)
Monsanto Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.